链式、函数式、响应式编程**Demo
/** 链式 */
/** +10-9*20/10 */
CGFloat result = [NSObject makeCalculator:^(WZXCalculatorManager *manager) {
manager.add(10).sub(9).muilt(20).divide(10);
}];
NSLog(@"链式：%f",result);
/** 函数式 */
/** 判断2*5是否等于10 */
WZXFunctionalCalculator * functionCal = [[WZXFunctionalCalculator alloc]init];
BOOL equle = [[[functionCal calculator:^CGFloat(CGFloat result) {
result += 2;
result *= 5;
return result;
}]equle:^BOOL(CGFloat result) {
return result == 10;
}] isEqule];
NSLog(@"函数式：%d",equle);
/** 响应式 */
/** 改变model.labelText属性 _label跟着改变text */
_model = [[WZXResponseModel alloc]init];
[_model addObserver:self forKeyPath:@"labelText" options:NSKeyValueObservingOptionNew context:nil];
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
_model.labelText = @"kvo";
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSString *,id> *)change context:(void *)context
{
if ([keyPath isEqualToString:@"labelText"])
{
self.label.text = change[@"new"];
NSLog(@"str新值:%@",change[@"new"]);
}
}